After this you'll have contaminate, so use it as much as possible when killing jungle creep, it helps sooo much.

Now run to ghost camp and kill the big one, the rest should go down easy. Then run and kill twin golums using a smite. Get to about 3/4 of your health and kill lizard camp without smite. Your health will be low but run over to wolf camp and kill it again. Go back to the shop (when you have 700g), buy Madred's Razor. Follow the rest of the build order!

Team Fighting:
Ult their tank, separate their team with pillar, throw down contaminate and rape! With this build you rely heavily on your movement speed, so get blue buff and contaminate the ground as much as possible to get around.

Conclusion:
With this build you can initiate or clean up on a team fight, your choice. With your insane attack speed you can kill any character in the game (after you get madreds).

League of Legends is a team based, real time strategy game set in a mythical world of swords & magic where epic battles decide the fate of mystical nations. Game players take on the role of a Summoner who conjures and controls champions to fight for them at the Institute of War. During game play champions gain experience and items to enhance their skills and abilities. How players develop and play their champions can be the difference between a crushing defeat or a glorious victory!